Win7 32 bit
Short description of error
Blender doesn't open and the following message boxes show:
The first msg box content:
blender.exe - System Error
The program can't start because zlib.dll is missing from your computer. Try reinstalling the program to fix this problem.
The second msg box content:
blender.exe - Bad Image
[blender directory path]\blender-2.80.0-git.1b78f05-windows32\BlendThumb64.dll is either not designed to run on Windows or it contains an error. Try installing the program again using the original installation media or contact your system administrator or the software vendor for support.
Than the computer becomes non responsive and the screen becomes black for some seconds. After the blender main window shows but it is completely empty and doesn't respond and I have to force close it with Windows Task Manager.
Here a screenshot of the empty window: https://imgur.com/jbiGGci
Here a screenshot of the console window for message reference: https://imgur.com/Cxjjt5r
Exact steps for others to reproduce the error
Just click on blender.exe to execute the program.